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- PDB-10mh: TERNARY STRUCTURE OF HHAI METHYLTRANSFERASE WITH ADOHCY AND HEMIM... -

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Basic information

Entry
Database: PDB / ID: 10mh
TitleTERNARY STRUCTURE OF HHAI METHYLTRANSFERASE WITH ADOHCY AND HEMIMETHYLATED DNA CONTAINING 5,6-DIHYDRO-5-AZACYTOSINE AT THE TARGET
Components
  • DNA (5'-D(P*CP*CP*AP*TP*GP*(5CM)P*GP*CP*TP*GP*AP*C)-3')
  • DNA (5'-D(P*GP*TP*CP*AP*GP*5NCP*GP*CP*AP*TP*GP*G)-3')
  • PROTEIN (CYTOSINE-SPECIFIC METHYLTRANSFERASE HHAI)
KeywordsTRANSFERASE/DNA / TRANSFERASE / METHYLTRANSFERASE / RESTRICTION SYSTEM / COMPLEX (METHYLTRANSFERASE- DNA) / TRANSFERASE-DNA COMPLEX
Function / homology
Function and homology information


DNA (cytosine-5-)-methyltransferase activity, acting on CpN substrates / DNA (cytosine-5-)-methyltransferase activity, acting on CpNpG substrates / DNA (cytosine-5-)-methyltransferase / DNA restriction-modification system / methylation / DNA binding
Similarity search - Function
: / DNA Methylase, subunit A, domain 2 / DNA Methylase; Chain A, domain 2 / DNA methylase, C-5 cytosine-specific, conserved site / C-5 cytosine-specific DNA methylases C-terminal signature. / DNA methylase, C-5 cytosine-specific, active site / C-5 cytosine-specific DNA methylases active site. / C-5 cytosine-specific DNA methylase (Dnmt) domain profile. / C-5 cytosine methyltransferase / C-5 cytosine-specific DNA methylase ...: / DNA Methylase, subunit A, domain 2 / DNA Methylase; Chain A, domain 2 / DNA methylase, C-5 cytosine-specific, conserved site / C-5 cytosine-specific DNA methylases C-terminal signature. / DNA methylase, C-5 cytosine-specific, active site / C-5 cytosine-specific DNA methylases active site. / C-5 cytosine-specific DNA methylase (Dnmt) domain profile. / C-5 cytosine methyltransferase / C-5 cytosine-specific DNA methylase / Vaccinia Virus protein VP39 / S-adenosyl-L-methionine-dependent methyltransferase superfamily / Alpha-Beta Complex / Rossmann fold / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
S-ADENOSYL-L-HOMOCYSTEINE / DNA / DNA (> 10) / Type II methyltransferase M.HhaI
Similarity search - Component
Biological speciesHaemophilus haemolyticus (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / OTHER / Resolution: 2.55 Å
AuthorsSheikhnejad, G. / Brank, A. / Christman, J.K. / Goddard, A. / Alvarez, E. / Ford Junior, H. / Marquez, V.E. / Marasco, C.J. / Sufrin, J.R. / O'Gara, M. / Cheng, X.
CitationJournal: J.Mol.Biol. / Year: 1999
Title: Mechanism of inhibition of DNA (cytosine C5)-methyltransferases by oligodeoxyribonucleotides containing 5,6-dihydro-5-azacytosine.
Authors: Sheikhnejad, G. / Brank, A. / Christman, J.K. / Goddard, A. / Alvarez, E. / Ford Jr., H. / Marquez, V.E. / Marasco, C.J. / Sufrin, J.R. / O'gara, M. / Cheng, X.
History
DepositionAug 10, 1998Deposition site: BNL / Processing site: RCSB
Revision 1.0Feb 9, 1999Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Aug 9, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / struct_conn / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_conn.pdbx_leaving_atom_flag / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
B: DNA (5'-D(P*CP*CP*AP*TP*GP*(5CM)P*GP*CP*TP*GP*AP*C)-3')
C: DNA (5'-D(P*GP*TP*CP*AP*GP*5NCP*GP*CP*AP*TP*GP*G)-3')
A: PROTEIN (CYTOSINE-SPECIFIC METHYLTRANSFERASE HHAI)
hetero molecules


Theoretical massNumber of molelcules
Total (without water)44,7684
Polymers44,3843
Non-polymers3841
Water2,324129
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)99.860, 99.860, 325.200
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number155
Cell settingtrigonal
Space group name H-MH32

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Components

#1: DNA chain DNA (5'-D(P*CP*CP*AP*TP*GP*(5CM)P*GP*CP*TP*GP*AP*C)-3')


Mass: 3637.395 Da / Num. of mol.: 1 / Source method: obtained synthetically
#2: DNA chain DNA (5'-D(P*GP*TP*CP*AP*GP*5NCP*GP*CP*AP*TP*GP*G)-3')


Mass: 3704.404 Da / Num. of mol.: 1 / Source method: obtained synthetically
#3: Protein PROTEIN (CYTOSINE-SPECIFIC METHYLTRANSFERASE HHAI) / E.C 2.1.1.73 / MODIFICATION METHYLASE HHAI / M.HHAI


Mass: 37042.207 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Haemophilus haemolyticus (bacteria) / Production host: Escherichia coli (E. coli) / References: UniProt: P05102, EC: 2.1.1.73
#4: Chemical ChemComp-SAH / S-ADENOSYL-L-HOMOCYSTEINE


Type: L-peptide linking / Mass: 384.411 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C14H20N6O5S
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 129 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 3.52 Å3/Da / Density % sol: 65.03 %
Crystal growpH: 6.5
Details: 10% (W/V) PEG 8000 50 MM CALCIUM ACETATE 50 MM SODIUM CACODYLATE PH 6.5
Crystal grow
*PLUS
Temperature: 16 ℃ / Method: unknown
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
110 %(w/v)PEG800011
250 mMcalcium acetate11
350 mMsodium cacodylate11

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Data collection

DiffractionMean temperature: 95 K
Diffraction sourceSource: SYNCHROTRON / Site: NSLS / Beamline: X12C / Wavelength: 1.15
DetectorType: MARRESEARCH / Detector: IMAGE PLATE / Date: Sep 15, 1996
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.15 Å / Relative weight: 1
ReflectionResolution: 2.5→30 Å / Num. obs: 15976 / % possible obs: 77.2 % / Redundancy: 3.23 % / Rmerge(I) obs: 0.075 / Net I/σ(I): 14.9
Reflection shellResolution: 2.5→2.54 Å / Rmerge(I) obs: 0.275 / Mean I/σ(I) obs: 2.89 / % possible all: 50.2
Reflection
*PLUS
Num. measured all: 51683
Reflection shell
*PLUS
% possible obs: 50.2 %

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Processing

Software
NameVersionClassification
X-PLOR3.1refinement
DENZOdata reduction
SCALEPACKdata scaling
RefinementMethod to determine structure: OTHER
Starting model: PDB ENTRY 5MHT

5mht


Resolution: 2.55→29.3 Å / σ(F): 0
RfactorNum. reflection% reflection
Rwork0.205 --
obs0.205 15965 76.6 %
Refinement stepCycle: LAST / Resolution: 2.55→29.3 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2606 492 27 129 3254
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.012
X-RAY DIFFRACTIONx_bond_d_na
X-RAY DIFFRACTIONx_bond_d_prot
X-RAY DIFFRACTIONx_angle_d
X-RAY DIFFRACTIONx_angle_d_na
X-RAY DIFFRACTIONx_angle_d_prot
X-RAY DIFFRACTIONx_angle_deg1.7
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d25.9
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d1.6
X-RAY DIFFRACTIONx_improper_angle_d_na
X-RAY DIFFRACTIONx_improper_angle_d_prot
X-RAY DIFFRACTIONx_mcbond_it
X-RAY DIFFRACTIONx_mcangle_it
X-RAY DIFFRACTIONx_scbond_it
X-RAY DIFFRACTIONx_scangle_it
LS refinement shellResolution: 2.55→2.67 Å / Total num. of bins used: 8
RfactorNum. reflection% reflection
Rwork0.32 1311 -
obs--51.5 %
Software
*PLUS
Name: X-PLOR / Version: 3.1 / Classification: refinement
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_dihedral_angle_d
X-RAY DIFFRACTIONx_dihedral_angle_deg25.9
X-RAY DIFFRACTIONx_improper_angle_d
X-RAY DIFFRACTIONx_improper_angle_deg1.6

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